Answer:

Step-by-step explanation:
A diameter is two times longer than a radius. Therefore, if the diameter
d = 24in, then the radius r = (24in) : 2 = 12in.
The formula of an area of a circle:

Substitute:


Then

A) The Y-intercept of this equation is 3
B) The slope of this equation is 2
C) This equation has a positive slope
D) Starting from the Y-intercept, I simply went over to the right 1 box, and up 2 boxes
I hope this helps!
Percent of change will always be positive because the change is an absolute value. As we know, absolute value is always a positive value because you don't pay attention to the direction, only the distance is important.
Answer:
57.50+4x=75.10
x=4.4
So she can use up to 4.4 gigabytes of data